YouTube’s Menu Rendering Problem Persists as Users Struggle with High Memory Usage
In Focus
- The YouTube browser bug causes a single tab to use more than 7GB of RAM
- Developers claim the problem lies with the “ytd-menu-renderer”
- Google and YouTube are yet to confirm the problem
YouTube users have been reporting heavy lag, extreme memory usage, and stuttering videos over the last few days. The lag reportedly affects multiple browsers, including Brave, Firefox, and Microsoft Edge. The problem has been attributed to a YouTube bug that causes browsers to render in an endless loop.
Problem With YouTube’s Menu Renderer
The glitch on the YouTube interface appears to be having a bigger impact on how users interact with the video streaming platform. Developers investigating the issue claim the problem lies with the “ytd-menu-renderer”, a flexible YouTube menu located below the video player, near the like, dislike, and share buttons.
This section of the YouTube interface is designed to adjust automatically, depending on the screen space available. According to posts shared on the Mozilla Bugzilla thread, developers say the “ytd-menu-renderer” tag works by removing one button automatically when there is an overflow on the screen, and restoring it once the menu element widens.
The YouTube code is intended to ensure only the buttons that fit on a user’s screen remain visible. However, the memory usage bug in the YouTube code is causing browsers to render and resize visual elements on the interface in a rapid, endless manner.
Reports about the YouTube browser bug came months after a global outage disrupted user access to the platform in February 2026. At the time, the disruption had affected video playback and homepage feeds.
What is Causing the High CPU Usage Issue on YouTube?
In the current situation, hiding one button changes the width of the container, which creates a new problem. Once the button disappears, the available width gets large enough, making the YouTube interface believe that there is sufficient space. The hidden button reappears and causes an overflow again.
This forces the interface to hide the button again, this cycle repeats continuously at extremely high speeds, overwhelming computer memory and processors. Reports show that in some instances, the YouTube browser bug causes a single tab to use more than 7GB of RAM.
The visual behavior may seem like a small issue. But inside the browser, the effects are much more significant. Modern browsers are constantly recalculating page layouts whenever elements change size or position.
If a webpage triggers these recalculations thousands of times per second, the browser can get stuck in what developers call a ‘reflow loop’ or layout thrashing. This causes the browser to repeatedly recalculate the layout dimensions, refresh interface elements, and update rendering states very fast, consuming processing power and memory.
When Will the Issue be Resolved?
YouTube, which recently added an AI-powered playlist generator, is yet to confirm the problem. It’s still unclear when the issue will be resolved fully. Reports about the YouTube lag and stuttering have been spreading on Reddit and other community forums.
Initially, many users thought the browser tabs freeze was as a result of an update or an ad blocker issue, which had been noted following a Firefox update. However, the focus shifted to YouTube after Edge and Brave users raised similar problems. Mozilla developers continue to investigate the issue.
